Belt-driven twisting-machine.



No. 773,354. PATENTED OCT. 25, 1904. J. E. TYNAN.

BELT DRIVEN TWISTING MACHINE. v

APPLIOATION FILED MAR. 2, 1904.

N0 MODEL. 2 SHEBTSSHBET 1.

ilfzirwssas: M67660]? /M%7ZW No. 773,354. r PATENTED OCT. 25, 1904. J. E. TYNAN.

BELT DRIVEN TWISTING MACHINE.

APPLICATION FILED MAR. 2, 1904.

H0 MODEL. 2 SHEETS-SHEET 2.

UNITED STATES Patented October 25, 1904.

PATENT Erica JOSEPH E. TYNAN, OF PATERSON, NEW JERSEY.

BELT-DRIVEN TWlSTlNG-IVIAOHINE.

SEEUIFIGATION forming part of Letters Patent No. 773,354, dated October 25, 1904;.

Application filed Ma ch 2, 190

.driven twisting-machines in which the several spindles or groups of spindles for twisting threads are independently of each other automatically caused to cease to revolve when a thread breaks or comes to an end.

The object ofmy invention is to obtain a simple and effective mechanism for driving the spindles and causing the driving power to cease to act upon the spindles when they are to be stopped. and in the form of the device which I show in the drawingsto wit, the application of the same to the making of organZine-silk threads-a further object is to cause the spindles at doffing-time, at quittingtime, or when a thread breaks or comes to an end to stop in such order in their relation to each other as to prevent the twisted threads from kinking.

In the drawings, Figure 1 is a vertical end view of a group of spindles with their driving-belts and stop mechanism. Fig. 2 is a detail view of the pressure-pulley shown in Fig. 1. Fig. 3 is a plan view of the group of three spindles, showing in detail the method of driving and stopping the same. Fig. 4: is a plan view of the brake m, shown in Fig. 1.

Throughout the drawings similar letters indicate similar parts.

The spindle-rail of the machine is shown at a. On this rail are mounted a row of spindles b, placed in a straight line along the rail. At one end of the machine is a vertical shaft (Z, carrying two pulleys cl and (Z The pulley d carries and drives a belt 0, which belt passes around a carrier-pulley (not shown) at the far end of the machine and returns to the pulley cl. The pulley (Z carries and drives a belt 2", which passes around a second carrierpulley (not shown) at the far end of the machine and returns to the pulley (Z The pulley (Z forms the running-line of the belt 0.

Serial No. 196,246. (No model.)

This general structure of machine is fully explained in a patent for belt-driven twistingmachines issued to me March 22, 190 1, No. 7 555,261, so I deem it unnecessary to repeat here in detail the method of construction and operation of the same.

In my present invention the belt 0 is in line with the spindle-whirls. A pressure-pulley g in front of the spindle Z), mounted in the bracket g, swinging on the stud g is pulled by means of the string 72. toward the belt 0 at a point opposite the spindle b, the preferable condition being such that at the time of contact of the pressure-pulley with the belt a line drawn from the center of the pressure-pulley to the center of the spindle would pass at right angles through the belt. The pressure of the pulley g is merely sufficient to press out the film of air from between the spindle I) and the surface of the belt 0. and such air being so excluded the belt drives the spindle. There is not sufiicient effect produced by such pressure upon the belt to force the film of air from between the belt and the adjoining spindles. Heretofore when belts have been pressed against spindles to drive them the pressure has been upon the belt at a point between the spindles and the belt has been bent, so that guard-pulleys were necessary between the spindles toprevent the operation of a given spindle from having some effect on the relation of the belt to the spindles to the right and left of the spindle being acted upon.- In the present case as the pressure comes against the spindle itself instead of between the spindles, as formerly, the influence on the relation of the belt to adjoining spindles is so very slight as to have no material effect upon them. In faot,the driven spindle itself acts as a guardpulley toward its neighbors. The belt may run so close to the spindles that it will touch the spindle-whirls, or it may run in a line that is a fraction of an inch away from the line of the spindle-whirls; but in either case when a pressure-pulley is brought to bear against the belt to drive a spindle the adjoining spindles will not be injuriously affected, as when stopped they are held by the brake m against any slight influence of the belt. When a spindle b is to be stopped, the pressure-pulley relating to it is removed from contact with the belt 0, and the spindle 7) is then no longer driven by the belt.

An explanation of the stopping and starting mechanism for the spindles will entail both a description of some matters set forth in the patent above referred to and of some matters which are new.

The rail 6 carries a bracket s, employed to hold the fallers for the threads, and other stopmotion mechanism. (Notshowu) The bracket 8 has a slot through which passes the rod a, carrying the latch 1'. The rod a at its lower end passes through a hole in the bracket 7). The spring 9, wound about the rod n, exerting its pressure between the bracket p' and the sleeve 0", secured to the rod 02, would cause the rod or to rise if it were not for the latch 0', the tooth of which beds against the bottom of the bracket s. W hen the stop motion mechanism on the breakage of a thread forces the latch r inward, the rod it rises. Ameans is provided to be used when the threads have been repaired. to force the rod a downward and again allow the latch to snap into place. It is this raising and lowering of the rod n which alternately causes the spindles to stop and start.

A plate 0 slides upon the rail (0. This plate is held down to the rail by the heads of the screws 6, passing through slots in the plate and loose enough in the slots to allow the plate to slide. 1n the front of the plate 6 are mounted the spindles ff, which are to carry bobbins for the single threads. These spindles ff are driven by the belt '5, the inward movement of the plate 0' pressing them against the belt and the outward movement of the plate a moving them from the belt. Guardpulleys 7c, placed between the two spindles ff belonging to one group and the two spindles ff belonging to the next group, prevent the pressure on the belt of any pair of spindles f f from affecting the relation of the belt 2 to adjoining pairs of spindles ff. The plate 0 contains at its rear end an opening 0 Through this opening passes the rod n and the sleeve 0 This sleeve has wedges 0 and 0 and is adjustable upon the rod 12. iVhen the rod it moves downward, the wedge 0 carries the plate (1 inward and the spindles ff against the belt 2". hen the rod 0/ moves upward, the wedge 0 forces the plate 0 outward, moving the spindles ff away from the belt 1 Upon the plateeis a hub g. In this hub is secured a stud The bracket g hinges upon this stud and carries the pressure pulley g, which, as before stated. is caused by the spring it to press against the belt 0 opposite the spindle 7). The plate 0 has upon it a projection a. W'hen the rod 92 rises and the plate (1 moves outward to relieve the spindles of their drivingmeans, the projection c strikes the bottom 0' of the bracket 9, turns the bracket 9 on the stud g and, against the force of the spring it, moves the pulley g away from the belt 0, so that it no longer presses the belt against the spindle Z). Vhile 1 preferably sccure the stud to the plate 0, the same result would be obtained if the stud were secured to the rail (1,.

The spindles ff and the spindle 7) are provided with brakes to stop their momentum when they have been relieved from their driving means. The brake for the spindle I), which is shown at m, is upon the stud m, secured to the plate (2, and moves forward against the spindle b when the plate moves forward. In addition to checking the momentum of the spindle after it has been relieved of its driving means the brake m holds the spindle against any slight inclination to revolve that may he accidentally imparted to it by the belt when the pressure-pulley g is not pressing the belt against the spindle. The brake m is preferably of some non-metallic material and is concave on its four sides, so that any side can be turned to the spindle. The brake Z for the spindles ff is hinged in the jaw Z upon the bracketp. It has an arm Z bearing against the spring Z and has on the cross-bar at its top the brake-pieces Z, which are free to turn upon the cross-bar and are hollowed out on the sides toward their respective spindles to lit the convex of the spindles; \/Vhen the plate 6 moves the spindles f f forward, they come in contact with the brake-pieces Z of the brake Z and press the brake forward against the force of the spring Z. The freedom of the brake-pieces Z to turn upon the crosspiece of the brake allows them always to present their entire surface to the pulley of the spindles ff in spite of the fact that the brake is tipped forward as it swings in the jaw Z In the twisting of organzine-silk threads when a group of three spindles is stopped a limited quantity of slack thread is thrown from the bobbins containing the single threads, and the twist in the threads is so great that in the absence of some compensating device the single threads will form into kinks, greatly interfering with the quality of the work. To obviate this difficulty, I arrange the action of the parts so that the spindle b is not stopped until after the spindles f f are stopped, whereby the ring-travelero continues for a moment to act after the spindles ff are stopped, and the ring-traveler draws up the slack thread thrown from the bobbins on the spindles ff and Winds it on the bobbin on the spindle b, so that when the spindle b has stopped the strands of thread leading from the bobbins on the spindles ff are taut and the formation of kinks is prevented. The method by which this is brought about whenindividual groups of spindles are stopped for the purpose of dotting the full bobbins from the spindle Z) or when a thread breaks or comes to an end is as follows: hen the platee moves outward, it carries the spindles ff out of contact with the belt a. It likewise carries the hub g and the stud g outward; but this fact does not interfere with the pressure of the'pulley 5/ upon the belt 0, because the bracket gswings upon the stud g and the spring It continues to hold the pulley g against the belt 0; but after an interval, which interval depends for its length upon the distance between the projection e and the bottom g of the bracket 9, the movement of the plate 0 causes the projection e to strike the bottom 9* of the bracket 9, and thereafter the movement of the plate 6 carries the pressure-pulley g away from the belt 0. The position of the brake Z in its relation to the spindles ff is such that the spindles ff are not alone removed from their drivingbelt by the outward movement of the plate a, but are forced against the brake-pieces Z of the brake and their momentum checked before the driving power is removed from the spindle Z. The brake then moves outward with the spindles ff and the plate 0 until the pressure-pulley g is moved from the belt 0 and the brake for the spindle Z has been applied. An arrangement to bring about a similar result when the entire machine is stopped is shown in the sliding rod a, with its wedges and supports. On the stoppage of the machine in the noon-hour or at the end of the day it is desirable to put in action certain parts which prevent the stop-motions of the several groups of spindles from acting, so that when the time comes to start up the machine all the spindles can be started together instead of it being necessary to start each group separately. The result is that the method I have described for stopping the spindles f f before stopping the spindle Z is not applicable; but the sliding rod u, with its wedges and supports, brings about a similar action of the parts-to wit, the stopping of spindles ff before spindle Z when the entire machineis stopped.

As shown in Fig. 1 and also in dotted lines in Fig. 3, there is upon the bracket ,1) a block a". Between this block and the brake Zisthe rod 26, having wedges a at a number of points along its length. At the end of the machine the rod is bent, as at a, and its stroke is limited by a pin a upon the bracket M2 and a tooth if upon the wedge 14*, which wedge is secured to the rod it. \V hen the machine is running, the rod u is in the position shown in Fig. 3. \Vhen the machine is to be stopped, the operator pulls the handle a of the rod a, sliding the rod until the tooth 1/ looks upon the pin a \Vhen this has been done, the wedge if, sliding on the pin a, and a similar wedge and pin at the other end of the machine have moved the rod '21. inward, the narrowest part of the wedge if rests between the block a and the brake Z, and each spring Z along the machine is able to force its brakeZ inward until the brake-pieces Z bear against the pulleys of the spindles ff. Owing to the brakepieces being loose upon their bearings, they are able to turn and present their entire surfaces against the surfaces of the spindles f f, and the spindles are thereby stopped. Having moved the rod a, the operator turns off the power from the machine, and the spindles ff are stopped for only a moment before the motion of the entire machine ceases; but the moment is long enough for the spindle Z, which continues free to be revolved by the momentum of the machine,- to take up an amount of thread suflicient to leave the strands of thread leading from bobbins on the spindles f f free from the usual kinks. When the machine is running, the position of the rod 24 is such as to allow it to act as a buttress for the brakes Z and hold the brakes clear of the pulleys of the spindles ff.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A row of spindles placed in a straight line, a belt, adapted to run parallel with said row of spindles, and means for driving the belt, in eombinationwith a series of pressure-pulleys. one of said pulleys being in front of and having relation to each of said spindles, and being adapted to press against said belt opposite the spindle to which it relates, substantially as and for the purpose described.

2. A row of spindles placed in a straight line, a belt, adapted to run parallel with said row of spindles, means todrive the belt, and a series of pressure-pulleys, one of said pulleys being in front of and having relation to .each of said spindles, and being adapted to press against said belt opposite the spindle to which it relates, in combination with means, relating to each of said pressure-pulleys individually, to move such pressure-pulley to or from the belt as the spindle to which it relates is to be started or stopped, substantially as and for the purpose described.

3. The spindles ff, the belt Z, the rail a, the spindle Z on the rail (Z, the winding-on mechanism of the spindle Z, the belt 0, and a pressure-pulley in front of the spindleZ adapted to press against the belt 0 opposite the spindle, in combination with means, brought into operation when a group of spindles is to be stopped, to remove the spindles ff from the belt Z without interfering with the driving of the spindle Z, and subsequently to remove the pressure-pulley from contact with the belt 0.

4. The spindles f f, the belt i, the spindle Z and its winding-on mechanism, the belt 0, and a pressure pulley to press the belt 0 against the spindle Z, in combination with means, brought into operation when a group of spindles is to be stopped, to remove the spindles f f from the belt c' Without interfering with the driving of tliespindle Z, and subsequently to remove the pressure-pulley from contact with the belt 0.

5. The plate 0, the spindles ff, the belt Z adapted to drive the spindles f f, the rail (4,

the spindle Z), the belt 0, the hinged pressurepulley in front of the spindle band adapted to press against the belt 0 opposite said spindle, the spring haetuating pulleyg, and means to drive the belts 'Z and 0, in combination with the projection 0 upon the plate 0, and means to slide the plate (3 inward or outward as the spindles are to be started or stopped, and to cause the projection e,upon the outward movement of the plate, to move the pressure-pulley g from the belt a.

6. The rail cathe plate athe spindle b mounted in the rail (Z, the belt a, the pressure-pulley g and its hinge, said pressure-pulley being in front of the spindle Z and adapted to press against the belt 0 opposite said spindle, the spring lb, and means to drive the belt 0, in combination with the projection 6 upon the plate a, and means to slide the plate 6 inward or outward as the spindle bis to be started or stopped.

7. The rail (Z, the spindle Z) and its windingon mechanism, the belt 0, the hinged pressurepulley 1 adapted to press the belt 0 against the spindle b, the spindlesff, and the belt i, adapted to drive the spindles ff, in combination with the spring controlled hinged brake Z, and means to move the spindles ff from the belt 11 and against the brake Z, and subsequently move the pressure-pulley g from the belt 0.

8. The spindle Z) and its winding-on mechanism, the spindles ff, and means for driving all three of said spindles, in combination with the spring-controlled hinged brake Z, having brake pieces Z which are normally out of contact with the spindles f 7 when the parts are running, and means to release the brake Z and allow its brake-pieces to come in contact with the spindlesf f, substantially as and for the purpose described.

9. The spindle?) and its Winding-on mechanism, the spindles ff, means for driving the spindles band ff, and the spring-controlled hinged brake Z, in combination with the rod u, supports for the rod 11,, and means to cause the rod '{Z to move toward the brake Zto form a support for the same, and to move from the brake Z to allow the brake to come into contact with the pulleys of the spindles ff.

10. A row of spindles Z), and a belt to drive them, a row of spindles f and a belt to drive them, brakes for the spindles Z; and brakes for the spindles f, in combination with means, adapted to be manually operated when the machine is to be stopped, to apply the brakes to the spindles f without applying the brakes to the spindles Z). JOSEPH E. TYNAN. \Vitnesses:

HERBERT J. Monnissn, NATHANIEL (j. VERHOEFF. 

